Simmons 800447 User manual

Aiiiong the stars the easiest targets are the Pleiades group
in die constellation. Taurus and the Great Isebuia m Orion.
Turn ?our idei^ope onto the seven visibie stars oi the
Plf-iades and you will huisdreds oi additional stats not
visible to the naked eye.
!.i.xatai about midway down the 'sword" oi Onon is the
Great Nebula. This great gas doud Ls m the process of form¬
ing a new star, whicli will liave an estimated mass 20,0CX3
times greater than our suii.
Stars in general are not intetesiii^ to the casual oliserver.
The magnifying [X)wer oi telescopes lias no apparent effect
on them, no detail can be observed, no casual infonnaticn is
rtmealed. However to the expenenced observer, there are
hundreds of inieiesting stars or groups of stars which pro¬
vide a lifetime of rewarding study.
An example of one such star Is Beielgeuse, the light-orange
star marking one shoulder of Orion, it Is one of the largest
known stars, with a diameter 4X) times our own sun.
Earth’s orbit could easily fit inside Betelgeuse. One of the
most interesting features of this young star is that it periodi¬
cally expands and contracts.
Sinus, the brightest sar in the c^t sky is asualh' 27 omes
brighter tl-ian the sun. in it^ Sirkis is erf no parttular
interest, however because of its ccHupantoi sor. die a
'binary" systan tewnsd. Sirius and the orbit abait a
common center of pavtty.
Atout 1/lO.OnO as bright as Srius, The ftip is far deiser.
On Earth, one cubic inch of the P^i’s mat«iai would we^
one ton. The estunated mais of tte fHip is 250.000 nme
greater than the Earth.
As derese a.s the Pup is. it does brfd the reowd. The
densest of the known stars e> known as AC+70° 8247. A
tablespoon of its substaice wcwld weigh 720 ttsE.
On the other haral the largest known star, Ejsilon
Auringne B. is 100 million limes k.'ss dense than water. If it
were here on earth, it wchM have to be ded down to keep it
ftom floating away.
If you wish to kam more about astronomy, there are sever¬
al sources of Information availaUc from libraries and book¬
stores.
CAin'IOli: Viewing the sun with this telescope or even the unaided eye can result in
blirfdiress ororiieriieTtoas'eye darnage'wlrichTna7'be'perOTanient. : '
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525 POWER / 60MM
REFRACTOR TELESCOPE ASSEMBLY
AND USER INSTRUCTIONS
For Models:
800447 800449
800450 800723

H^TEs Objecis will ^^)ear reversed (minDi im^e).
3. Refine aiming of tefecc^ as needed to teato target
object in die field of view. Ti^ten azimuth locking
screw to prevent fvsrths nxjvement.
4. Look into tte findeisccpe (ob^ts tviH tip-skic
tkswni- Fogis by rotating fiiKlet eyqjkie. Ctmter tar¬
get object on crcsshair intersecttcm by mming the
alignnynr screws in the finderso^ bracket.
5. Replace the H2hniney^ptece with the H!2.'3mm
eyqjietK. ^p^t stqis 3 and 4 Remove dia^nal mir¬
ror and eyqtKce Rtplace diagonal mirror with the
Barbw Ims. Insert {120niQi eyt^nece into Barfow lens
and rqieat the al^nment process.
DSIN6 m T-18
The Tl&iun ey^iecc produa-*s normal
images for terrestrial viewing. To use,
remove the diagonal minor fiom focusing
tube and replace with the T18 eyepiece.
The 'f 18 also works as a 14X mlaoscope.
Place dear plasUc end over object to be
inspected.
GETTING m HOST GOT OF YOOB mESCOPE
Take the time to become familiar with your new telescope.
Learn the names of the vaticHis parts, where they are locat¬
ed and how they work. It is best to do this in the day time.
Notice how as magnilicaUon is Increased, the image
becomes darker, the field of view (area seen throu^ the
telesccqje) decreases and focusing becomes more alQcal.
When setting up for a viewing session, place the telescope
in an area shdtered from the wind if possible. Best night
lime viewing will be away from city l^ts and when the
atmosphere is "steady" (good viewing oanditions). With a
Ittile praaice, you will learn to judge when viewnng condi¬
tions are good. Look for the ni^ts where the stars shine
lastly with little or no twinkling.
Use bw power to take advantage of the wider field of view
aiKl brighter images. Reserve your hi^ powers for those
nights when viewing conditions are really good and there is
SKiK detail to be seen.
If thee is an astroiKimy dub in your area, consider becom¬
ing a member. Yew can learn more in an hour from experi¬
enced hoHiyists than in a month of uninfonned casual
olKerving. The chamber of commerce, library, science
museum or planetarium may have information regarding
neaiby dubs.
Until you become familiar with yewr telescxjpe. it is best to
pick easy- targets for your first views of our ceiestlai sur-
ioanding. The easiest ami most interesting of alL is the
moon.
The moon is Ixrst viewed at bw power and when It is Less
tlian full. Because of its pro.Kimity to Earth, its angular
speed is quite fast ■ 15 arc niinutej; per sranure of time or
1/2 its diameter pei mrnuce. Magnification provided by the
tek^ope not only makes the image larger, it also has the
effect of increasing apparent speed, making tracking mote
difficult.
The bnghtness of the full moon tends to flacien some sur¬
face details and hide others. Best viewing is when it is
waxing or waning.
The planets Venus, Mats. Jupiter and Saturn are all easy tar¬
gets.
Venus us exceeded in bngtitness only by the sun and moon.
It is best viewed at cw'ili^t or just before dawn. Look for
Venus on the horizon. It may be seen as a disc or as a chui
crescent.
Mars appears as a reddish-orange disc. Some surface deiai.ts
may be seen when it Is it’s ebsest to earth.
Jupiter, the largest of the known planets in our solar system
is an interesting subject. The great red spot Is easily seen,
although In sni^ telescopes it appears more blue-gray dian
red. Equally easy to see is the equatorial belt. It al^ appears
bluc'-gray.
Four of Jupiter's moons, known as the Galilean inoons, are
seen as Uny specs of l^t lying on either side of this giant
planet.
Saturn, appearing dull yelbw in the night sky. reveals its
ring systems readily. D^ndfng on ifs orbital positton rela¬
tive to Earth, the rings may be seen as a streak of light cut¬
ting through Saturn, to a broad band surrounding a sus¬
pended disc.
Uranus and Neptune are not easy targets for the beginner
because they are not bright enough to be seen with tlie
ixaked eye, making bating them difficult.
As your Interest in astronomy increases and you gain expe¬
rience you will learn of a celestiai "addressii^ system which
makes locating unseen objects possible.
Pluto, the funheist of the know'ii planets requires a tele¬
scope with a five or six-inch diameter objective lens, just to
make it barely visible.
Mercury, although a "visible" planet is not an easy telescope
target for the novice, it lays so dose to the sun that it can
only be seen in the early morning or early evening hours,
low on the horizon. March, April. August and Si^ember are
the best months to observe Mercury.